Andrew Hansen, PhD

Professor, Graduate Program in Rehabilitation Science

Andrew Hansen

Contact Info

ahhansen@umn.edu

Mailing Address:
Division of Physical Therapy
MMC 388
420 Delaware St SE
Minneapolis, MN 55455

Professor, Graduate Program in Rehabilitation Science

Director, Minneapolis Adaptive Design & Engineering (MADE), Minneapolis VA Health Care System


PhD, Northwestern University (Biomedical Engineering), 2002

MS, Northwestern University (Biomedical Engineering), 1998

BSE, University of Iowa (Biomedical Engineering), 1995

Research

Research Summary/Interests

Design and Evaluation of Rehabilitation Technologies, Human Biomechanics, Rehabilitation Engineering, Prosthetics and Orthotics, Wheelchair Design and Evaluation

Research Funding Grants

  1. Improving Footwear Options for Women and Men Veterans with Amputations – Department of Veterans Affairs, RR&D (PI: Hansen)
  2. Improving Energy Return and Residual-Limb Climate in Prostheses for High-Functioning Amputees – Department of Defense, CDMRP (PI: Hansen)
  3. Mobile Manual Standing Wheelchair – Department of Veterans Affairs, RR&D (PIs: Goldish and Hansen)
  4. Upper Body Dynamic Positioning System for Persons with SCI – Minnesota Office of Higher Education (PIs: Hansen and Goldish)
  5. Development of a Foot-Ankle Prosthesis to Improve Physical Therapy Outcomes – Department of Veterans Affairs, RR&D (PIs: Koehler-McNicholas and Hansen)
  6. Development of a Personal Use Seating Pressure Measurement System – Department of Defense, CDMRP (PI: Morrow)
  7. Self-management to improve functioning following limb loss – Department of Veterans Affairs, RR&D (PIs: Turner and Czerniecki)
  8. Muscle Powered Exoskeleton for Standing and Walking by People with Spinal Cord Injury – Minnesota Office of Higher Education (PI: Durfee)
  9. A Prosthetic Foot Emulator to Optimize Prescription of Prosthetic Feet in Veterans and Service Members with Leg Amputations System – Department of Defense, CDMRP (PI: Morgenroth)
  10. Active Cooling Socket for Improving Residual Limb Skin Comfort and Skin Care – Department of Defense, CDMRP (PI: Hirschman)
  11. Sensor System for Self-Management of Prosthetic Socket Fit loss – Department of Veterans Affairs, RR&D (PI: Ferguson)
  12. Medical 3D Printing, System and Process for 3D Printing Prosthetic Components – Defense Logistics Agency (PI: Hand)
  13. Women’s-Specific Footwear with Prosthetic Feet – Department of Defense, CDMRP (PI: Russell-Esposito)
  14. Camera System Development for Pressure Injury Screening in Veterans with SCI – Department of Veterans Affairs, RR&D (PI: Olney)
  15. New IV Clamp to Prevent Medication Errors – Department of Veterans Affairs, Innovation Spark Funding (PI: Goldish)
  16. Development of an Arm Cycle Ergometer for Supine Use – Minnesota Office of Higher Education (PI: Goldish)

Patents

  1. Hansen AH, Goldish GD, Nickel E. Collapsible manual wheelchair system for improved propulsion and transfers. United States Patent 9,795,522. Issued on October 24, 2017.
  2. Goldish GD, Hansen A, Nickel E, Ferguson JE. System for screening skin condition for tissue damage. United States Patent 9,788,792. Issued on October 17, 2017.
  3. Caldwell RJ, Hansen AH, Wood SM, Chen W, Radcliffe RA, Yngve KA, Kuhar BE, Nelson AJ, Nickel E. Vacuum Pump Systems for Prosthetic Limbs and Methods of Using the Same. United States Patent 9,757,255. Issued on September 12, 2017.
  4. Hansen AH, Nickel EA. Ankle-Foot Prosthesis for Automatic Adaptation to Sloped Walking Surfaces. United States Patent 9,549,827. Issued on January 24, 2017.
  5. Goldish, G., Hansen, A., Nickel, E. System for Screening the Skin Condition of the Plantar Surface of the Feet. United States Patent 9,301,688. Issued on April 5, 2016.
  6. Starker, F., Schneider, U., Hansen, A., Childress, D., Pauli, J., Pauli, C. Artificial Ankle, Artificial Foot and Artificial Leg. United States Patent 9,204,979. Issued on December 8, 2015.
  7. Goldish, G., Hansen, A., Nickel, E. Mobile Manual Standing Wheelchair. United States Patent 9,101,520. Issued on August 11, 2015.
  8. Caldwell, R., Hansen, A., Wood, S., Chen, W., Radcliffe, R., Yngve, K., Kuhar, B., Nelson, A.J., Nickel, E. Vacuum Pump Systems for Prosthetic Limbs and Methods of Using the Same. United States Patent 9,066,822. Issued on June 30, 2015.
  9. Goldish, G., Hansen, A. Mobile Manual Standing Wheelchair. United States Patent 9,044,369. Issued on June 2, 2015.
  10. Hansen, A., Goldish, G. Manual Wheelchair System for Improved Propulsion and Transfers. United States Patent 8,905,421. Issued on December 9, 2014.
  11. Hansen, A., Childress, D. Bi-modal Ankle-Foot Device. United States Patent 8,764,850. Issued on July 1, 2014.
  12. Hansen, A., Nickel, E. Further Improvements to Ankle-Foot Prosthesis and Orthosis Capable of Automatic Adaptation to Sloped Walking Surfaces. United States Patent 8,696,764. Issued on April 15, 2014.
  13. Hansen, A., Gard, S., Childress, D., Ruhe, B., Williams, R. Equilibrium-Point Prosthetic and Orthotic Ankle-Foot Devices. United States Patent 8,597,369. Issued on December 3, 2013.
  14. Hansen, A., Sensinger, J. Passive Ankle-foot Prosthesis and Orthosis Capable of Automatic Adaptation to Sloped Walking Surfaces and Method of Use. United States Patent 8,480,760. Issued on July 9, 2013.

Publications

  1. Owen E, Fatone S, Hansen A. (In press) Effect of Walking in Footwear with Varying Heel Sole Differentials on Shank and Foot Segment Kinematics. Prosthetics Orthotics International, doi: 10.1177/0309364617728119.
  2. Nickel E, Hansen A, Pearlman J, Goldish G. (In press) A Drive System to add Standing Mobility to a Manual Standing Wheelchair. Assistive Technology, doi: 10.1080/10400435.2016.1165757.
  3. Olney C, Leestma J, Hansen A, Ferguson J, Murphy Kruse M, Goldish G (2017) Skin Self-Screening Camera for Veterans with Spinal Cord Injury. Proceedings of the 2017 Design of Medical Devices Conference. DMD2017-3330.
  4. Fairhurst SR, Koehler-McNicholas SR, Slater BCS, Nickel EA, Koester KA, Voss GO, Hansen AH, Ferguson JE (2017) Improving Automatic Control of an Ankle-Foot Prosthesis using Machine Learning Algorithms. Proceedings of the 2017 Design of Medical Devices Conference. DMD2017-3464.
  5. Koehler-McNicholas SR, Nickel EA, Medvec J, Barrons K, Mion S, Hansen AH (2017) The influence of a hydraulic prosthetic ankle on residual limb loading during sloped walking. PLoS One, doi: 10.1371/journal.pone.0173423, Published on March 9, 2017.
  6. El-Khatib M, Ferguson J, Koehler-McNicholas S, Koester K, Hansen A (2016) Establishing the Feasibility of a Sensor-Based Sock Management System. Journal of Medical Devices. Vol. 10, No. 3, 030906-030906-2. doi:10.1114/1.4033740.
  7. Fairhurst S, Nickel E, Morin S, Goldish G, Hansen A (2016) Design of an Ergonomic Wheelchair Drive System for Improved Shoulder Biomechanics. Journal of Medical Devices. Vol. 10, No. 3, 030952-030952-2. doi:10.1115/1.4033766.
  8. Koehler-McNicholas SR, Nickel E, Schultz CJ, Hansen AH (2016) Rocker Shoes for Natural Immobilization of the Ankle during Single-Limb Support. Journal of Medical Devices. Vol. 10, No. 3, 030954-030954-2. doi:10.1115/1.4033767.
  9. Fairhurst SR, Lin X, Nickel EA, Hansen AH, Ferguson JE (2015) Sensor Based Control of a Bimodal Ankle–Foot Prosthesis with a Smart Phone Interface. Journal of Medical Devices. Vol. 9, No. 3, 030907.
  10. Fairhurst SR, Simone AB, Ferguson JE, Hansen AH (2015) Portable Wireless Visuotemporal Cue Device for Gait Therapy. Journal of Medical Devices. Vol. 9, No. 3, 030909.
  11. Ferguson JE, Wittig BL, Payette M, Goldish GD, Hansen AH (2014) Pilot study of a strap-based custom wheelchair seating system in persons with spinal cord injury. Journal of Rehabilitation Research and Development, Vol. 51, No. 8, 1255-1264.
  12. Nickel E, Sensinger J, Hansen A (2014) Passive Prosthetic Ankle-Foot Mechanism for Automatic Adaptation to Sloped Surfaces. Journal of Rehabilitation Research and Development, Vol. 51, No. 5, 803-814.
  13. Koehler SR, Dhaher YY, Hansen AH (2014) Cross-validation of a portable, six-degree-of-freedom load cell for use in lower-limb prosthetics research. Journal of Biomechanics, Vol. 47, No. 6, 1542-1547.
  14. Meier M, Tucker K, Hansen A (2014) Development of Inexpensive Prosthetic Feet for High Heel Shoes using a Simple Shoe Insole Model. Journal of Rehabilitation Research and Development, Vol. 51, No. 3, 439-450.
  15. Hansen A, Bedore B, Nickel E, Hanowski K, Tangen S, Goldish G. (2014) Elastic Head Support for Persons with Amyotrophic Lateral Sclerosis (ALS). Journal of Rehabilitation Research and Development, Vol. 51, No. 2, 297-304.
  16. Hansen A, Nickel E, Medvec J, Brielmaier S, Pike A, Weber M (2014) Effects of a Flat Prosthetic Foot Rocker Section on Balance and Mobility. Journal of Rehabilitation Research and Development, Vol. 51, No. 1, 137-148.
  17. Komolafe O, Wood S, Caldwell R, Hansen A., Fatone S. (2013) Methods for Characterization of Mechanical and Electrical Prosthetic Vacuum Pumps. Journal of Rehabilitation Research and Development, Vol. 50, No. 8, 1069-1078.
  18. Hansen AH, Nickel E. (2013) Development of a Bi-Modal Ankle-Foot Prosthesis for Walking and Standing/Swaying. ASME Journal of Medical Devices, Volume 7, No. 3, 035001.
  19. Nickel E, Hansen A, Goldish G, Fairhurst F, Morin S (2013) Upper Limb Cycle Ergometer for Supine Exercise. ASME Journal of Medical Devices, Volume 7, No. 2, 020910.
  20. Meier MR, Hansen AH, Gard SA, McFadyen AK. (2012) Obstacle Course: Users’ Maneuverability and Movement Efficiency when using the Otto Bock C-Leg and 3R60, and the CaTech SNS Prosthetic Knee Joints. Journal of Rehabilitation Research and Development, Vol. 49, No. 4, 583-596.
  21. Boutwell E, Stine R, Hansen A, Tucker K, Gard S. (2012) Effect of Prosthetic Gel Liner Thickness on Gait and Pressure Distribution within the Transtibial Socket. Journal of Rehabilitation Research and Development, Vol. 49, No. 2, 227-240.
  22. Nickel EA, Hansen AH, Gard SA. (2012) Prosthetic Ankle-Foot System that Adapts to Sloped Surfaces. ASME Journal of Medical Devices, Vol. 6, No. 1, 011006.
  23. Sinitski EH, Hansen AH, Wilken JM. (2012) Biomechanics of the Ankle-Foot System during Stair Ambulation: Implications for Design of Advanced Ankle-Foot Prostheses. Journal of Biomechanics, Vol. 45, 588-594.
  24. Gard SA, Su PF, Lipschutz RD, Hansen AH. (2011) The Effect of Prosthetic Ankle Units on Roll-Over Shape Characteristics During Walking in Persons with Bilateral Transtibial Amputations. Journal of Rehabilitation Research and Development, Vol. 48, No. 9, 1037-1048.
  25. Hansen AH, Wang CC. (2011) Effect of Rocker Shoe Radius on Oxygen Consumption Rate in Young Able-bodied Persons. Journal of Biomechanics, Vol. 44, 1021-1024.
  26. Dillon M, Fatone S, Hansen AH. (2011) The Effect of Prosthetic Design on the Center of Pressure Excursion in Partial Foot Prostheses. Journal of Rehabilitation Research and Development, Vol. 48, No. 2, 161-178.
  27. Klodd E, Hansen AH, Fatone S, Edwards ML. (2010) Effects of Prosthetic Foot Forefoot Flexibility on Gait of Unilateral Transtibial Prosthesis Users. Journal of Rehabilitation Research and Development, Vol. 47, No. 9, 899-910.
  28. Hansen AH, Childress DS. (2010) Investigations of Roll-over Shape: Implications for Design, Alignment, and Evaluation of Ankle-Foot Prostheses and Orthoses. Disability and Rehabilitation, Vol. 32, No. 26, 2201-2209.
  29. Klodd E, Hansen AH, Fatone S, Edwards ML. (2010) Effects of Prosthetic Foot Forefoot Flexibility on Oxygen Cost and Subjective Preference Rankings of Unilateral Transtibial Prosthesis Users. Journal of Rehabilitation Research and Development, Vol. 47, No. 6, 543-552.
  30. Wang CC, Hansen AH. (2010) Response of Able-bodied Persons to Changes in Shoe Rocker Radius during Walking: Changes in Ankle Kinematics to Maintain a Consistent Roll-Over Shape. Journal of Biomechanics, Vol. 43, 2288-2293.
  31. Hansen AH, Wang CC. (2010) Effective Rocker Shapes Used by Able-Bodied Persons for Walking and Fore-aft Swaying: Implications for Design of Ankle-Foot Prostheses. Gait and Posture, Vol. 32, 181-184.
  32. Hansen AH, Meier MR. (2010) Roll-over Shapes of the Ankle-Foot and Knee-Ankle-Foot Systems of Able-Bodied Children. Clinical Biomechanics, Vol. 25, 248-255.
  33. Hansen AH, Miff SC, Childress DS, Gard SA, Meier MR. (2010) Net External Energy of the Biologic and Prosthetic Ankle during Gait Initiation. Gait and Posture, Vol. 31, 13-17.
  34. Fatone S, Sorci E, Hansen AH. (2009) Effects of Clinically Prescribed Ankle Foot Orthoses on Ankle-Foot Roll-over Shapes: A Case Series. Journal of Prosthetics and Orthotics, Vol. 21, No. 4, 196-203.
  35. Williams RJ, Hansen AH, Gard SA. (2009) Prosthetic Ankle-Foot Mechanism Capable of Automatic Adaptation to the Walking Surface. Journal of Biomechanical Engineering, Vol., 131, No. 3, 035002.
  36. Srinivasan S, Westervelt ER, Hansen AH. (2009) A Low-Dimensional Sagittal Plane Forward-Dynamic Model for Asymmetric Gait and its Application to Study the Gait of Transtibial Prosthesis Users. Journal of Biomechanical Engineering, Vol. 131, No. 3, 031003.
  37. Hansen AH, Childress DS. (2009) Effects of Shoe Heel Height on the Roll-over Shapes of Prosthetic Ankle-Foot Systems: Implications for Heel-Height Adjustable Components. Journal of Prosthetics and Orthotics, Vol. 21, No. 1, 48-54.
  38. Hansen AH. (2008) Effects of Alignment on the Roll-over Shapes of Prosthetic Feet. Prosthetics and Orthotics International, Vol. 32, No. 4, 390-402.
  39. Dillon M, Hansen AH, Fatone S. (2008) Influence of Marker Models on Ankle Kinematics in Persons with Partial Foot Amputation: An Investigation Using a Mechanical Model. Journal of Rehabilitation Research and Development, Vol. 45, No. 4, 567-576.
  40. Miff SC, Hansen AH, Childress DS, Gard SA, Meier MR. (2008) Roll-over Shapes of the Able-Bodied Knee-Ankle-Foot System during Gait Initiation, Steady-State Walking, and Gait Termination. Gait and Posture, Vol. 27, 316-322.
  41. Fatone S. and Hansen AH. (2007) Effect of an Ankle Foot Orthosis on Roll-over Shape in Adults with Hemiplegia. Journal of Rehabilitation Research& Development, Vol. 44, No. 1, 11-20.
  42. Fatone S. and Hansen AH. (2007) A Model to Predict the Effect of Ankle Joint Misalignment on Calf Band Movement in Ankle-Foot Orthoses. Prosthetics and Orthotics International, Vol. 31, No. 1, 76-87.
  43. Hansen, A., Meier, M., Sessoms, P., Childress, D. (2006) The Effects of Prosthetic Foot Roll-over Shape Arc Length on the Gait of Trans-tibial Prosthesis Users. Prosthetics and Orthotics International, Vol. 30, No. 3, 286-299.
  44. Miff, S., Childress, D., Gard, S., Meier, M., Hansen, A. (2005) Temporal Symmetries During Gait Initiation and Termination in Non-Disabled Ambulators and in People with Unilateral Transtibial Limb Loss. Journal of Rehabilitation Research and Development, Vol. 42, No. 2, 175-182.
  45. Hansen, A., Childress, D. (2005) Effects of Adding Weight to the Torso on Roll-over Characteristics of Walking. Journal of Rehabilitation Research and Development, Vol. 42, No. 3, 381-390.
  46. Meier, M., Sam, M., Hansen, A., Childress, D. (2004) The Shape&Roll Prosthetic Foot (Part II): Field Testing in El Salvador. Medicine Conflict and Survival, Vol. 20, No. 4, 307-325.
  47. Sam, M., Childress, D., Hansen, A., Meier, M., Lambla, S., Grahn, E., Rolock, J. (2004) The Shape&Roll Prosthetic Foot (Part I): Design and Development of Appropriate Technology for Low-Income Countries. Medicine Conflict and Survival, Vol. 20, No. 4, 294-306.
  48. Sam, M., Hansen, A., Childress, D. (2004) Characterization of Prosthetic Feet Used in Low-Income Countries. Prosthetics and Orthotics International, Vol. 28, 132-140.
  49. Hansen, A., Childress, D. (2004) Effects of Shoe Heel Height on Biologic Roll-over Characteristics During Walking. Journal of Rehabilitation Research and Development, Vol. 41, No. 4, 547-554.
  50. Hansen, A., Sam, M., Childress, D. (2004) The Effective Foot Length Ratio (EFLR) A Potential Tool for Characterization and Evaluation of Prosthetic Feet. Journal of Prosthetics and Orthotics, Vol. 16, No. 2, 41-45.
  51. Hansen, A., Childress, D., Knox, E. (2004) Roll-over Shapes of Human Locomotor Systems: Effects of Walking Speed. Clinical Biomechanics, Vol. 19, No. 4, 407-414.
  52. Hansen, A., Childress, D., Miff, S., Gard, S., Mesplay, K. (2004) The Human Ankle During Walking: Implications for Design of Biomimetic Ankle Prostheses and Orthoses. Journal of Biomechanics, Vol. 37, No. 10, 1467-1474.
  53. Hansen, A., Childress, D., Miff, S. (2004) Roll-over Characteristics of Human Walking on Inclined Surfaces. Human Movement Science, Vol. 23, No. 6, 807-821.
  54. Hansen, A.H., Meier, M.R., Sam, M., Childress, D.S., Edwards, M.L. (2003) Alignment of Trans-tibial Prostheses Based on Roll-over Shape. Prosthetics and Orthotics International, Vol. 27, No. 2, 89-99.
  55. Hansen, A., Childress, D., Meier, M. (2002) A Simple Method for Determination of Gait Events. Journal of Biomechanics, Vol. 35, No. 1, 135-138.
  56. Hansen, A.H., Childress, D.S., Knox, E.H. (2000) Prosthetic Foot Roll-over Shapes with Implications for Alignment of Trans-tibial Prostheses. Prosthetics and Orthotics International, Vol. 24, No. 3, 205-215.